Incorrect requirements parsing on the documentation.

[jonkeane]

Our requirements.txt correctly specifies the version(s) of Notebook we support (notebook>=6.1.5, <7.0.0
), but when that gets parsed into the docs at https://docs.posit.co/rsconnect-jupyter/ it morphs into the misleading / incorrect Notebook >=5,7

The release on PyPI is also stale stating "Python 3.7.0 and higher" (though, again, the requirements.txt looks fine at that tag on GitHub)